Go to the Live View and use the "Locations" button at the top right to filter your widget so it only shows a particular location. This will change the URL in the address bar of your browser.
Next, copy the new URL and link directly to this widget from your site. Or you can contact email@example.com for help embedding the widget right on your site.
You can do this for as many locations as you like. It also works for +More Filters!